1. K.B. Oldham,
J. Spanier,
The fractional calculus, theory and applications of differentiation and integration to arbitrary order
(Dover,
New York,
1974)
2. K.S. Miller,
B. Ross,
An introduction to the fractional calculus and fractional differential equations
(John Wiley,
New York,
1993)
3. S.G. Samko,
A.A. Kilbas,
O.I. Marichev,
Fractional integrals and derivatives, theory and applications
(Gordon and Breach Science Publishers,
Amsterdam,
1993)
4. I. Podlubny,
Fractional differential equations
(Academic,
New York,
1999)
5. K.L. Shen,
T.T. Soong,
J. Eng. Mech. 121, 694
(1995)